import asyncio
import webbrowser
from typing import Dict, Any

async def open_url(args: Dict[str, Any]) -> Dict[str, Any]:
    """
    Opens a website in the default browser on Windows.

    Args:
        args: Dictionary containing 'url' (string) of the website to open.

    Returns:
        Dictionary with status message and input arguments.

    Raises:
        OSError: If opening the website fails.
    """
    try:
        # Get URL from args
        url = args.get('url')
        if not url:
            raise ValueError("URL must be provided in args")

        # Ensure URL has a scheme (http:// or https://)
        if not url.startswith(('http://', 'https://')):
            url = 'https://' + url

        # Open website in default browser
        success = await asyncio.to_thread(webbrowser.open, url)
        if not success:
            raise OSError("Failed to open the website")

        return {
            "message": f"Website {url} opened successfully",
            "args": args
        }

    except Exception as e:
        raise OSError(f"Error while opening website: {str(e)}")